Patent GB-190401675-A (GB)
Title: Improvements in Machines for Wrapping and Packing Articles.
Inventor: WRIGHT RICHARD HARVEY
Filed: 1904-01-22
Granted: 1904-06-23
Abstract: 1675. Wright, R. H. Jan. 22. Parcelling; wrappers.-Articles are wrapped and packed into boxes by apparatus such as that shown in the Figures. The material for the wrappers, which may consist of two paper strips laid on one another, may be first printed with advertisements or other matter, and is then punched by apparatus such as that shown in Fig. 22, consisting of a punching-roll 400 operating in conjunction with a roll 401. The punching-roll is provided with a cutter 420, which may be adapted partially to punch the disc 422, leaving a connecting neck 427, as shown in Fig. 24. Within the cutter moves a spring plunger 416 for moving outwards the partially-cut disc. The cutter 420, instead of partially cutting the disc, may simply serve to produce a weakened part. The punched material 20, Fig. 1, is fed by a feed roll 100 to the cutting-roll 25 by which the wrappers are cut into lengths. Between the rolls 100 and 25 is an oscillating arm 102 having a roll 98 by which the material is withdrawn from the roll 100 thus allowing a slack at intervals to ensure true alignment in its passage between the rolls 24 and 25. The roll 25 has a spring bar 73, Fig. 3, the point 72 of which is normally withdrawn by a spring. As the rolls revolve, a pin 89 on the bar engages with a cam to protrude the point 72 into engagement with the punched perforations or weakened parts of the material, to feed the material in true alignment. The roll 24, acting in conjunction with the roll 25, has a recess 87 to receive the point 72, and a cut-off part 117 so that the roll 24 takes no part in feeding the material at this part. The material is pressed to the roll 25 by suitable springs. The knife 80 is provided at each side with guards actuated by springs 78. The roll 24 has a suitable cutting-bed 79. The cut-out blank falls before one of the moulds on the folding-wheel 51 mounted on the shaft 30, Fig. 1. The moulds, which are on the circumference of the wheel, are each formed of two side-plates, one of which is adjustable, the other being pivoted and spring- actuated, and actuated at intervals by a cam for the admission and exit of the articles. The moulds are provided with plungers 48, the plungers in the opposite moulds being connected by a rod which is suitably actuated to eject the wrapped article. The article, which is placed on a band 11, is fed, with the wrapper, into the mould by a pusher 12, the article being suitably held or guided at the top by a pivoted piece 10, and the band being supported underneath by an arm 14. A folder 28 folds down the upper flap, and as the intermittently-actuated wheel rotates, the lower flap 109, Fig. 11, is folded over the upper one by a stationary folder 60. Working in conjunction with the wheel 51, is a tucker wheel 81 having corresponding moulds. When the mould carrying the article arrives in alignment with the corresponding mould on the wheel 81, the article is pushed into the latter by the plunger 48. The tucker moulds have additional plates 53 which fold the flaps 110 of the wrapper. The article is then carried by the intermittent rotation of the wheel 81 to the delivery shoot 93 at the opposite side. Here, stationary folders 44 and movable folders 45 fold the flaps 111,112, and on the article being delivered into the shoot 93 by the plunger 48, the final flaps 113 are folded. The wrapped articles are thus pushed in succession along a shoot until the foremost one operates a trigger 222, Fig. 17, when, by the automatic operation of a clutch, a pusher 219 is actuated to push the row of packets into a closed carrier on a table 225, a stop 235, which is depressed to allow the packets to pass, being thrust up behind the packets to hold the end flaps in position. Rows of packets are thus pushed into the carrier until the foremost rowstrikes a latch or trigger 242 which suitably operates a clutch and thus actuates mechanism by which the carrier and packets are moved into the box 324, Fig. 19, which is placed in position to receive them. The bottom of the carrier is formed with slits in which, on the return of the carrier, prongs 264 engage to prevent the withdrawal of the packets, the prongs being withdrawn or depressed on the forward movement. The boxes 324, Fig. 19, are fed, with their open mouths towards the carrier, down guide 296, by means of chains having spring projections which, when not pressed by the sides of a box, spring outwards at right-angles to the chains to hold the lower box. The boxes are lowered step by step until the lower box is filled, when it rests on swinging-arms 295 by which the box is placed mouth upwards on travelling chains 302 by which it is conveyed from the machine.